/Engine/Plugins/Experimental/Mutable/Source/CustomizableObject/Classes/MuCO/CustomizableObjectInstance.h
Enable physics asset replacement so that generated skeletal meshes have the merged physics assets of their skeletal mesh parts and reference mesh.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=CustomizableObjectInstance) void SetReplacePhysicsAssets ( bool bReplaceEnabled )